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| 1 | Towards 6G wireless communication networks:vision,enabling technologies,and new paradigm shifts显示文摘The fifth generation(5G)wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized,such as mass connectivity,ultra-reliability,and guaranteed low latency.However,5G will not meet all requirements of the future in 2030 and beyond,and sixth generation(6G)wireless communication networks are expected to provide global coverage,enhanced spectral/energy/cost efficiency,better intelligence level and security,etc.To meet these requirements,6G networks will rely on new enabling technologies,i.e.,air interface and transmission technologies and novel network architecture,such as waveform design,multiple access,channel coding schemes,multi-antenna technologies,network slicing,cell-free architecture,and cloud/fog/edge computing.Our vision on 6G is that it will have four new paradigm shifts.First,to satisfy the requirement of global coverage,6G will not be limited to terrestrial communication networks,which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV)communication networks,thus achieving a space-airground-sea integrated communication network.Second,all spectra will be fully explored to further increase data rates and connection density,including the sub-6GHz,millimeter wave(mmWave),terahertz(THz),and optical frequency bands.Third,facing the big datasets generated by the use of extremely heterogeneous networks,diverse communication scenarios,large numbers of antennas,wide bandwidths,and new service requirements,6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI)and big data technologies.Fourth,network security will have to be strengthened when developing 6G networks.This article provides a comprehensive survey of recent advances and future trends in these four aspects.Clearly,6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears. | Xiaohu YOU Cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi CHEN Xinying MA Chih-Lin I Shuangfeng HAN Ke LI Chengkang PAN Zhimin ZHENG Lajos HANZO Xuemin(Sherman)SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik GLARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin CHEN Zhe CHEN Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO HVincent POOR Gerhard P.FETTWEIS Ying-Chang LIANG | 2021 | Science China(Information Sciences)2021，64，1： | 122 |
| 2 | Constitutive Modeling and Hot Deformation Behavior of Duplex Structured Mg–Li–Al–Sr Alloy显示文摘Hot deformation behavior of an as-extruded duplex structured Mg–9Li–3Al–2.5Sr alloy is investigated via hot compression tests conducted at 200–350 °C with strain rate of 0.001–1 s-1.The flow behavior of Mg–9Li–3Al–2.5Sr alloy can be described accurately by hyperbolic sine constitutive equation and the average activation energy for deformation is calculated as 143.5 k J/mol.Based on a dynamic materials model,the processing maps of Mg–9Li–3Al–2.5Sr alloy which describe the variation of power dissipation efficiency are constructed as a function of temperature and strain rate.The processing maps exhibit an area of discontinuous dynamic recrystallization occurring at 280–300 °C with strain rate of 0.001–0.01 s-1,which corresponds to the optimum hot working conditions. | Yan hang Xiaodong Peng Fengjuan Ren Haiming Wen Junfei Su Weidong xie | 2016 | Journal of Materials Science & Technology2016，32，12： | 6 |
| 3 | A stable artificial protective layer for high capacity dendrite-free lithium metal anode显示文摘The metallic lithium(Li)is considered as the most promising anode material for high-e nergy batteries.Nevertheless,the uncon trollable growth of Li den drite and un stable electrolyte/electrode in terface still hin der the developme nt of Li-based battery.In this work,a no vel strategy has been proposed to stabilize Li anode by in-situ polymerizing polypyrrole(PPy)layer on Ni foam(PPy@Ni foam)as an artificial protective layer.The PPy protective layer can effectively decrease the contact between Li metal and electrolyte during cycling.In addition,the morphology characterization shows that the PPy layer can help the even Li deposition undemeath the layer,leading to a dendrite-free Li anode.As a result,when deposited 2 mAh-cm-2 Li metal,the PPy@Ni foam can keep stable Coulombic efficiency(99%)during nearly 250 cycles,much better than the pure Ni foam(100 cycles).Even in the case of the Li capacity of 10 mAh-cm-2,the stable cycling performance for 60 cycles can still be achieved.Furthermore,when assembled with LiFePO4 material as the cathode for a full cell,the PPy@Ni foam can keep high capacity retention of 85.5%at 500 cycles.In our work,we provide a simple and effective method to enhanee the electrochemical performances of Li metal-based batteries,and reveal a new avenue to design three-dimensional(3D)metallic curre nt collector for protecting the Li metal ano de. | Zhipeng Wen Yueying Peng Jianlong Cong Haiming Hua Yingxin Lin Jian Xiong Jing Zeng Jinbao Zhao | 2019 | Nano Research2019，12，10： | 6 |
| 4 | Machine Learning-Based Multi-Modal Information Perception for Soft Robotic Hands显示文摘This paper focuses on multi-modal Information Perception(IP)for Soft Robotic Hands(SRHs)using Machine Learning(ML)algorithms.A flexible Optical Fiber-based Curvature Sensor(OFCS)is fabricated,consisting of a Light-Emitting Diode(LED),photosensitive detector,and optical fiber.Bending the roughened optical fiber generates lower light intensity,which reflecting the curvature of the soft finger.Together with the curvature and pressure information,multi-modal IP is performed to improve the recognition accuracy.Recognitions of gesture,object shape,size,and weight are implemented with multiple ML approaches,including the Supervised Learning Algorithms(SLAs)of K-Nearest Neighbor(KNN),Support Vector Machine(SVM),Logistic Regression(LR),and the unSupervised Learning Algorithm(un-SLA)of K-Means Clustering(KMC).Moreover,Optical Sensor Information(OSI),Pressure Sensor Information(PSI),and Double-Sensor Information(DSI)are adopted to compare the recognition accuracies.The experiment results demonstrate that the proposed sensors and recognition approaches are feasible and effective.The recognition accuracies obtained using the above ML algorithms and three modes of sensor information are higer than 85 percent for almost all combinations.Moreover,DSI is more accurate when compared to single modal sensor information and the KNN algorithm with a DSI outperforms the other combinations in recognition accuracy. | Haiming Huang Junhao Lin Linyuan Wu Bin Fang Zhenkun Wen Fuchun Sun | 2020 | Tsinghua Science and Technology2020，25，2： | 4 |
| 5 | Fiber guiding at the Dirac frequency beyond photonic bandgaps显示文摘Light trapping within waveguides is a key practice of modern optics,both scientifically and technologically.Photonic crystal fibers traditionally rely on total internal reflection(index-guiding fibers)or a photonic bandgap(photonic-bandgap fibers)to achieve field confinement.Here,we report the discovery of a new light trapping within fibers by the so-called Dirac point of photonic band structures.Our analysis reveals that the Dirac point can establish suppression of radiation losses and consequently a novel guided mode for propagation in photonic crystal fibers.What is known as the Dirac point is a conical singularity of a photonic band structure where wave motion obeys the famous Dirac equation.We find the unexpected phenomenon of wave localization at this point beyond photonic bandgaps.This guiding relies on the Dirac point rather than total internal reflection or photonic bandgaps,thus providing a sort of advancement in conceptual understanding over the traditional fiber guiding.The result presented here demonstrates the discovery of a new type of photonic crystal fibers,with unique characteristics that could lead to new applications in fiber sensors and lasers.The Dirac equation is a special symbol of relativistic quantum mechanics.Because of the similarity between band structures of a solid and a photonic crystal,the discovery of the Dirac-point-induced wave trapping in photonic crystals could provide novel insights into many relativistic quantum effects of the transport phenomena of photons,phonons,and electrons. | Kang Xie Wei Zhang Allan D Boardman Haiming Jiang Zhijia Hu Yong Liu Ming Xie Qiuping Mao Lei Hu Qian Li Tianyu Yang Fei Wen Erlei Wang | 2015 | Light(Science & Applications)2015，4，1： | 1 |
| 6 | Synthesis and characteristics of monticellite bioactive ceramic显示文摘 | Xianchun Chen Jun Ou Yunqing Kang Zhongbing Huang Hongyang Zhu Guangfu Yin Haiming Wen | 2008 | Journal of Materials Science: Materials in Medicine2008，，3： | 1 |
| 7 | Desertification and Blown Sand Disaster in China显示文摘 | Yanli Lyu Yanyan Yang Lanlan Guo Lianyou Liu Peijun Shi Guoming Zhang Zhiqiang Qu Xia Hu Jingpu Wang Yiying Xiong Haiming Wen Jie Lei Bo Liang Jiadong Dai | 2016 | Journal of Agricultural Science and Technology(A)2016，6，6： | 1 |
| 8 | Morphology, spatial pattern and sediment of Nitraria tangutorun nebkhas in barchans interdune areas of at the southeast margin of the Badain Jaran Desert, China显示文摘 | YanYan Yang LianYou Liu GuoMing Zhang Jie Lei HaiMing Wen YiYing Xiong | 2014 | Geomorphology2014，，： | 1 |
| 9 | Influence of Extrusion on the Microstructure and Mechanical Behavior of Mg-9Li-3Al- x Sr Alloys显示文摘 | Yan Yang Xiaodong Peng Haiming Wen Baolong Zheng Yizhang Zhou Weidong Xie Enrique J. Lavernia | 2013 | Metallurgical and Materials Transactions A2013，，2： | 1 |
| 10 | Influence of Extrusion on the Microstructure and Mechanical Behavior of Mg-9Li-3Al-xSr Alloys 显示文摘 | Yan Yang Xiaodong Peng Haiming Wen | 2013 | Metallurgical and Materials Transactions2013，44，2： | 1 |
| 11 | The Book of Changes显示文摘Clarifying human affairs by understanding thepattern of the heavens FOR ordinary Chinese, the Book of Changes (Zhouyi 周易) is usually taken as a mystical book for fortune-telling. But it | WEN HAIMING | 2011 | China Today2011，60，1： | 0 |
| 12 | Laozi and His Magnum Opus the Daodejing显示文摘LAOZI,a contemporary of Confucius(551-479 BC),is considered to be one of the most significant philosophers to emerge in ancient China.He founded Daoism and is best known as the author of the Daodejing.According to historical records,Laozi’s name was Li Er. | WEN HAIMING | 2011 | China Today2011，60，3： | 0 |
| 13 | Chinese Buddhism in the Sui and Tang Dynasties显示文摘BUDDHISM is believed to have been founded by the Indian prince Siddhartha Gautama later known as Sakyamuni, in the sixth century B.C. At 35 Siddhartha attained enlightenment and subsequently Buddhahood under a Bodhi tree. Over the next 40 years he spread his wisdom in the regions along the Ganges | WEN HAIMING | 2011 | China Today2011，60，12： | 0 |
| 14 | Xunzi:Self-cultivation by Means of Ritual Propriety显示文摘XUNZI(313-238 B.C.)occupies a status in Chinese history similar to that of Aristotle in the West.His time came at the end of the great flowering of philosophical inquiry in the Warring States Period (475-221 B.C.),and his theories mark the final chapter in the evolution of ancient Confucian philosophy. | WEN HAIMING | 2011 | China Today2011，60，9： | 0 |
| 15 | Han Fei’s Art of Rulership:Governing a State by Power,Law and Statecraft显示文摘HAN Fei (ca. 280-233 BC) was born into the ruling family of the State of Han (in presentday Henan Province). He differed from other philosophers of his time in that his noble status came with certain responsibilities and fated him to have to master the art of governance. | WEN HAIMING | 2011 | China Today2011，60，8： | 0 |
| 16 | Introduction to the Special Theme on “Richard Shusterman's Somaesthetics”显示文摘 | WEN Haiming | 2015 | Frontiers of Philosophy in China2015，10，2： | 0 |
| 17 | "Confucian Cultural Fallacy" in the 20th Century Chinese Enlightenment Movement显示文摘第 20 世纪在中国见证一个强壮的文化启发运动,以工业化运动在开始迟了第 19 世纪 Qing 王朝(1616-1912 ) 并且在 1919 在 5 月四日运动继续。文化启发运动被象民主和科学的卓越那样的西方的想法强烈影响。中国现代文化启发能与以新生开始了的欧洲启发相比。我希望强调的这中国启发的一个典型特征是想法和文化的决定功能,特别考虑到由知识分子的传统的孔子思想的许多批评在第 20 世纪为 Westernization 的所有失败抱怨了它。这是我把什么称为儒家文化谬误。这个谬误影响了许多著名知识分子,例如 Tu 我 Wei。在这份报纸,我开始分析这个谬误怎么在二个他的主要参数影响了 Tu:儒家苏醒运动的第三个阶段,和文化中国的想法。在整个我在现代中国的儒家文化谬误的不同版本的分析,我也讨论怎么在与西方的启发运动的关系理解中国文化启发运动的最好。 | WEN Haiming CHEN Deming | 2013 | Frontiers of Philosophy in China2013，8，2： | 0 |
| 18 | A universal adaptive vector quantization algorithm for space-borne SAR raw data显示文摘Codebook of conventional VQ cannot be generally used and needs real time onboard updating,which is hard to implement in spaceborne SAR system.In order to solve this problem,this paper analyses the characteristic of space-borne SAR raw data firstly,and then utilizes the distortion function of multidimensional space as criterion,and finally the adaptive code book design algorithm is proposed according to the joint probability density function of the input data.Besides,the feasibility of the new algorithm in cascade with entropy coding and the robustness of the algorithm when error occurs during transmission are analysed based on the encoding and decoding scheme.Experimental results of real data show that codebook deriving from the new algorithm can be generally used and designed off-line,which makes VQ a practical algorithm for space-borne SAR raw data compression. | QI HaiMing HUA Bin LI Xin YU WeiDong HONG Wen | 2012 | Science China(Information Sciences)2012，55，6： | 0 |
| 19 | Know Thyself,Know Thy Enemy:Sunzi’s Art of War显示文摘SUN Wu, better known as Sunzi, is widely considered to be the greatest strategist ever and exerted a huge influence on | WEN HAIMING | 2011 | China Today2011，60，6： | 0 |
| 20 | Mencius: Governing the State with Humane Love显示文摘MENCIUS (Mengzi, 372-289 B.C.) is regarded as the 'Second Sage' because of his significant role in promoting the thinking of Confucius. He was born in the state of Zou, in what is now Zoucheng City of Shandong Province, but lost his father at an early age and his mother had the most profound influence on his upbringing. | WEN HAIMING | 2011 | China Today2011，60，4： | 0 |
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